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Server-Side Rendering with Angular Universal

1. Introduction

Server-Side Rendering (SSR) with Angular Universal allows you to render your Angular applications on the server. This enhances performance and improves SEO, providing a better user experience.

2. Key Concepts

2.1 What is Angular Universal?

Angular Universal is a tool for rendering Angular applications on the server using Node.js.

2.2 Benefits of SSR

  • Improved SEO
  • Faster initial load time
  • Better user experience

3. Setup

To set up Angular Universal, follow these steps:

  1. Install Angular Universal:
  2. ng add @nguniversal/express-engine
  3. Build the application:
  4. npm run build:ssr
  5. Serve the application:
  6. npm run serve:ssr

4. Code Example

Here is a simple example of a server-side rendered Angular component:

import { Component } from '@angular/core';

@Component({
  selector: 'app-hello',
  template: '

Hello from Angular Universal!

' }) export class HelloComponent { }

5. Best Practices

When implementing Angular Universal, consider these best practices:

  • Use lazy loading to enhance performance.
  • Avoid client-side specific code in shared modules.
  • Test your application thoroughly on both client and server sides.

6. FAQ

What is the difference between SSR and client-side rendering?

SSR renders pages on the server, while client-side rendering sends a blank page to the client and uses JavaScript to render the content.

Can I use Angular Universal for existing Angular applications?

Yes, Angular Universal can be added to existing Angular applications with minimal effort.